【摘要】 本文利用Castigliano氏定理推导出圆柱面螺旋线杆件的空间刚度,并针对建筑中螺旋楼梯常见的荷载求出杆件内力及变形,排有计算机计算程序,可用于含有螺旋楼梯的框架的空间计算。附有螺旋楼梯单杆计算例题。更多还原

【Abstract】 The computation of a helical staircase is rather complicated. In this paper, by applying the Castigliano’s Theorem, some derivation has been carried out to get the space stiffness matrix, forces and displacements at various sections along the helical member and used as the basis for a computer program. Thus, a helical staircase can be analyzed not only as a single member, but also as a member of a space structure, if necessary. A numerical example for computing a helical staircase as a single member is given at the end of the paper.更多还原